Growing Problems
Mushroom growing troubleshooting. Photos, guides and help with contamination identification (mold, bacteria, pests, fungal diseases) and cultivation problems which are NOT contamination (aborts, mutation, overlay, bruising, mycelium piss and many more).
Related publications
DIY Mold Test on Agar
Mold spores are everywhere. But how do you know what airborne contaminants are present in your home? Make a simple air sampling test on agar to check the air quality in your workspace for mycology or any other places
Natalensis: fruiting & overlay issues
All-in-one grow bag is not a magic pill, especially, when it comes to Natalensis cultivation. Aggressive behaviour of mycelium leads to overlay which is a common issue for Natal. Here we talk about what can be done if growbag already suffers from overlay
Cracked & split caps
A split or cracked mushroom caps and stems are neither contamination nor a disease. These symptoms indicate dehydration or imbalanced parameters in the fruiting chamber, which can be fixed. It can also be a genetic mutation that cannot be fixed
Mycogone aka Wet bubble
Shapeless masses, fluffy blobs of mycelium ooze with amber yellow orange brown liquid. Mycelium piss or wet bubble disease aka Mycogone perniciosa? Symptoms of wet bubble contam. Why mycogone appeared on mushroom cake? How to treat wet bubble disease?
Sterilization vs Pasteurization for bulk substrate
Pros and cons of Sterilization and Pasteurization for preventing green mold Trichoderma contamination in mushroom growing
Black spots on shrooms & mycelium
Strange black spots suddenly appeared on mushroom caps and mycelium. Why is this happening? Is it contamination or not? Is it safe to take such mushrooms?
Fuzzy feet and caps
Long stems, Fuzzy Feet, White Dots on mushroom caps or Fluffy Caps. What all these symptoms mean to a mushroom grower
Green mold aka Trichoderma
Signs of Trich contamination. Why Trich appear on the 2-3 flush? Add one magic component and forget about Green Mold contamination in mushroom growing. What to do with mycelium contaminated by Trichoderma Mold
Pinhead initiation. Fruiting conditions
STEP 10. Basic principles of pin setting. Fruiting parameters for mushrooms pinning, primordia formation, and fruit bodies development of Golden Teacher, Thai and Brazil strains. Growing problems during fruiting period and how to trigger pinheads.



















